At the root of the conflict: a law which requires all services to have properly licensed drivers. While it went into effect in October, Uber has appealed it and continued to operate regardless.

That's pretty much Uber's M.O. The service is accused of repeatedly flouting regulatory laws across the globe, driven in part by its rapid growth. (Video via WXYZ)

"The company is five years old, and they're in 250 cities, and there's no way they would be that big if they had gone around and asked regulators and incumbents if it was okay if they joined as well," Re/code's Liz Gannes told PBS.